TC-N 1752 is a potent and orally active inhibitor of Nav1.7, with IC50s of 0.17 μM, 0.3 μM, 0.4 μM, 1.1 μM and 2.2 μM at hNav1.7, hNav1.3, hNav1.4, hNaV1.5 and rNav1.8, respectively. TC-N 1752 also inhibits tetrodotoxin-sensitive sodium channels. TC-N 1752 shows analgesic efficacy in the Formalin model of pain[2].In Vitro: TC-N 1752 (compound 52) state-dependently inhibits Nav1.7, with IC50 of 170 nM on channels that are 20% inactivated and IC50 of 3.6 μM on fully noninactivated channels.
TC-N 1752 inhibits hNav1.7, hNav1.8, hNav1.9, rNav1.9, and mNav1.9 with IC50s of 0.2, 0.1, 1.6, 0.5 and 1.4 μM, respectively[2].
In Vivo: TC-N 1752 (compound 52) (3-30 mg/kg; p.o.) dose-dependently shows analgesic effect in the Formalin model.
TC-N 1752 (3-30 mg/kg; p.o.) decreases thermal hyperalgesia produced by inflammation.
TC-N 1752 (5 mg/mL; 500 μL; i.v.) attenuates complete Freund’s adjuvant (CFA)-induced sensitization of C-fiber nociceptors.